Thank you!
Next step: The fin and wings.
Assembly is pretty straight forward. The wings are hollow. There are many ways to increase stability. In this case I chose a rather unconventional one.
The wings are made of three parts, a core and two plates. The core is basically what you would expect but it has no texture.
The texture is achieved by laminating the plates to the core.
There are two reasons for that: First, the lamination gives strength. Second, on the studio model and the mockup have a step around the perimeter of the wing. The plate can be cut a bit smaller to increase this step effect (because it is a real step

). You may further increase it by laminating the plates to some leftover paper before you attach them.
This image shows the step on the original miniature clearly:
You can also see that the orange stripe stop at the step, so there is no reason to paint the edges after the laminations.
The fin:
The fin and the wings feature two protrusions which are used to keep them in place on the engine tubes.
While thinking about which piece was to be tackled next I glued a plate to the nose. On the original model this plate was concealing one of the mounting points used for filming.
A view at the studio model with the plate removed: